Late Eocene (Priabonian) brachiopod fauna from Dnipropetrovsk, eastern Ukraine

Bitner, Maria Aleksandra; Müller, Arnold

doi:10.3140/bull.geosci.1661

Cited by 9 publications

(7 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is very common in the Miocene of the Central Paratethys (e.g. Bitner 1990;Bitner, Pisera 2000;Bitner, Dulai 2004;Bitner, Kaim 2004;Dulai 2007Dulai , 2015Bitner et al 2014; Bitner, Motchurova-Dekova 2016), being shell subrectangular in outline, covered with single, low, rounded ribs validate the attribution to Argyrotheca cuneata. One specimen bears a short intercalated rib in the median groove (Fig.…”

Section: Systematic Partmentioning

confidence: 92%

“…Occurrence: The extinct genus Terebratula is common in the Neogene deposits of the Mediterranean Province (Gaetani, Saccà 1985), being also known from the Middle Miocene deposits of the Central Paratethys (e.g. Popiel-Barczyk, Barczyk 1990;Bitner, Pisera 2000;Bitner, Dulai 2004). This genus was also reported from two localities of Moravia, Přemyslovice and Kralice nad Oslavou (Zágoršek et al 2012;Bitner et al 2013a).…”

Section: Systematic Partmentioning

confidence: 99%

See 1 more Smart Citation

New record of Middle Miocene (Badenian) brachiopods from Moravia, Czech Republic

Bitner,

Hladilová,

Hrouzek

2023

Geologické výzkumy

View full text Add to dashboard Cite

This study presents the new record of brachiopods from the Middle Miocene deposits of the locality of Oslavany, Moravia, Czech Republic. The assemblage contains five species, i.e. Terebratula sp., Megathiris detruncata (Gmelin, 1791), Joania cordata (Risso, 1826), Argyrotheca cuneata (Risso, 1826), and Platidia sp. Apart from the species J. cordata, that dominates in the studied assemblage, the remaining species are reported for the first time from Oslavany. All species recognized here were already recorded from other localities in the Moravian part of the Carpathian Foredeep.

show abstract

Section: Systematic Partmentioning

confidence: 92%

Section: Systematic Partmentioning

confidence: 99%

New record of Middle Miocene (Badenian) brachiopods from Moravia, Czech Republic

Bitner,

Hladilová,

Hrouzek

2023

Geologické výzkumy

View full text Add to dashboard Cite

show abstract

“…They contain diverse microfossils and small, fragile macrofossils, among others foraminifera, corals, bryozoans, small brachiopods, worms, crustaceans, gastropods, bivalves, and fish remains. They represent various ecological niches of the warm-water, normal saline, high-energy littoral zone deposited in a beach environment (e.g., Veselov et al 1974;Nosovsky 1978;Kuzmicheva 1987;Stefanskyi et al 2011;Stefanskyi 2015a, b;Bitner and Müller 2017). The fossils are often excellently preserved, although the thin fragile bivalve and gastropod shells are commonly crushed and certainly many of them are lost in the fossil record.…”

Section: Methodsmentioning

confidence: 99%

Simple methods for detection of microborings produced by coral-associated microendoliths

Salamon

Kołodziej

Stefanskyi

2019

Facies

View full text Add to dashboard Cite

Well-preserved skeletons of Paleocene and Eocene scleractinians and octocorals (Polytremacis sp.) from Poland and Ukraine were studied to reveal microborings produced in vivo by coral-associated microendoliths. Microborings (mostly < 5 μm in diameter) are hardly visible, if at all, under a petrographic microscope. Their resin casts are obtained, however, through the epoxy vacuum cast-embedding technique and observed under a scanning electron microscope (SEM). Three-dimensional resin-filled (cast) microborings are also clearly visible under SEM in acid-etched petrographic thin-sections. Backscattered scanning electron microscopy imaging (BSE) is useful for visualization of the microborings during SEM study of both etched and non-etched thin-sections. A simple but very effective method to reveal the dense network of resin casts of microborings is observations of etched thin-sections under the petrographic microscope. Fluorescence microscopy (FL), especially with application of blue and green filters (Nikon's B-1A and G-2A filter cubes), is recommended if etching thin-sections or polished samples is not possible. However, color contrast between the resin casts and the calcium carbonate of the coral skeleton was strong enough only in some examined thin-sections. The cathodoluminescence microscopy, the other method, does not require the etching of the thin-sections and is potentially useful for detection of microborings filled with calcite cement, although this technique was not applicable for the samples studied. Symbiotic coral-microendolith association (in broad meaning of the term symbiosis) is a common phenomenon in modern corals, but its fossil record is very sparse. This study shows that empty microborings can be common in fossil corals, allowing preparation of the resin casts. Some of the tested methods permit rapid detection of resin-filled microborings in thin-sections even by non-specialists, and selection of samples for SEM studies. Corals from claystones and mudstones, usually less affected by diagenesis, have higher taphonomic potential for preservation of empty microborings than corals from reef facies. The methods discussed here can be also applied for rapid detection of post-mortem microborings occurring in other substrates.

show abstract

“…Only upper Eocene deposits (Obukhov Formation) occur in this locality (Stefanskyi & Stefanska 2015), the lower portion of which is referred to as the Mandrikovka layer. This is a shallow water yellowish grey, detrital, non‐glauconitic clayey sand rich in well‐preserved faunas of foraminifera, corals, molluscs, brachiopods, fish otoliths and rhodoliths (Müller & Rozenberg 2003; Amitrov & Zhegallo 2007; Armitrov 2008; Berezovsky 2014, 2015; Sirenko & Dell’Angelo 2015; Bitner & Müller 2017). Overlying this unit are dark grey–green and brown silty sands and clays, often glauconitic and very rich in siliceous sponge spicules and fragments of lithistid sponges (Berezovsky 2015; Stefanskyi & Stefanska 2015).…”

Section: Geological Settingmentioning

confidence: 99%

High diversity of siliceous sponges in Western Tethyan areas during the Eocene: palaeobiogeographical, ecological and taxonomic significance

Łukowiak

Pisera

Stefanska

et al. 2021

Papers in Palaeontology

View full text Add to dashboard Cite

Porifera is a clade of globally distributed, early diverging metazoans that are important components of modern aquatic environments. Despite the fact that they were also abundant in the geological past, their fossil record is uneven. For example, little is known about sponge communities that inhabited the Tethyan areas during the Cenozoic. Here, we record an abundant and taxonomically diverse assemblage of middle–late Eocene sponges from east‐central Ukraine. The material consists of preserved whole‐body specimens as well as disassociated spicules. The taxonomic composition of this new assemblage, supplemented with previously published data obtained from sponge materials originating from the middle and upper Eocene of the East European Platform, documents a surprisingly rich sponge community that inhabited shallow waters (depths of 100 m) and comprised at least 30 demosponge species, including two new taxa, Paratetilla milanek Łukowiak and Theonella alexandriae Łukowiak, three hexactinellids and a single homoscleromorph. Additionally, we report the first fossil occurrence of Vetulina, a demosponge genus that currently is found near the Philippines and Australia and in the Caribbean Sea. Some of the sponge taxa recognized were previously noted from the upper Eocene of Australia and New Zealand. This is indicative of their wide distribution during the early Cenozoic and also shows that a non‐interrupted connection existed between the western Tethyan and peri‐Australian areas, explaining the patchy distribution of some sponge taxa in modern seas.

show abstract

Late Eocene (Priabonian) brachiopod fauna from Dnipropetrovsk, eastern Ukraine

Cited by 9 publications

References 30 publications

New record of Middle Miocene (Badenian) brachiopods from Moravia, Czech Republic

New record of Middle Miocene (Badenian) brachiopods from Moravia, Czech Republic

Simple methods for detection of microborings produced by coral-associated microendoliths

High diversity of siliceous sponges in Western Tethyan areas during the Eocene: palaeobiogeographical, ecological and taxonomic significance

Contact Info

Product

Resources

About